Senior System Administrator - Qualispace

• Manage, monitor, and optimize cloud infrastructure (AWS, Azure) for performance, security, and cost-efficiency.
• Install, configure, and maintain Linux and Windows servers.
• Administer and troubleshoot web servers (Apache, Nginx, IIS) and database servers (MySQL, MS SQL, MongoDB).
• Maintain email infrastructure (e.g., Postfix, Exim, SmarterMail, Microsoft 365, or similar).
• Implement and manage backup, failover, and disaster recovery plans.
• Handle network configurations, firewall rules, VPNs, and DNS.
• Manage system patches, updates, and security hardening.
• Lead and mentor a team of system administrators; ensure timely task execution and incident resolution.
• Collaborate with development and support teams to ensure system availability and scalability.
• Participate in capacity planning, system audits, and documentation.
• Utilize DevOps tools and automation where applicable (CI/CD pipelines, Infrastructure as Code, etc.).
• Create and Document cloud architectures for various projects on AWS, Azure etc.

Requirements

• 5+ years of hands-on experience in system and cloud administration.
• Proficient in managing AWS and/or Microsoft Azure environments.
• Strong experience in Linux (CentOS, Ubuntu) and Windows Server administration.
• Expertise in configuring and maintaining Apache, Nginx, IIS, and related web server stacks.
• Proficient in MySQL, MS SQL, and MongoDB administration and optimization.
• Knowledge of email systems such as Postfix, Exim, or commercial platforms like SmarterMail.
• Solid understanding of networking concepts including routing, switching, firewalls, and VPNs.
• Should have sound knowledge of designing cloud architectures.
• Experience in team leadership or mentoring junior admins.
• Strong troubleshooting and problem-solving skills.
• Familiarity with DevOps tools (Ansible, Terraform, Jenkins, Docker, Kubernetes) is a plus.
• Strong communication skills, both written and verbal.
• AWS Certified SysOps Administrator / Solutions Architect
• Microsoft Certified: Azure Administrator Associate
• RHCE, MCSE, or equivalent
• CCNA or equivalent

Benefits

• No dress codes
• Flexible working hours
• 5 days working
• 24 Annual Leaves
• International Presence
• Celebrations
• Team outings